Ionic Equilibrium(Weak and Strong Electrolytes, Ionization of Electrolytes, Various Concepts of Acids and Bases...) NEET Questions

Physical Chemistry - Equilibrium

Ionic Equilibrium(Weak and Strong Electrolytes, Ionization of Electrolytes, Various Concepts of Acids and Bases...) MCQ Questions


13.
Which is the correct relation between pH and pOH?
A.
pH + pOH = 7
B.
pH + pOH = 14
C.
pH × pOH = 14
D.
pH - pOH = 7
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ANSWER :
B. pH + pOH = 14
14.
What is the conjugate base of H₂SO₄?
A.
HSO₄⁻
B.
SO₄²⁻
C.
H₃O⁺
D.
OH⁻
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ANSWER :
A. HSO₄⁻
15.
A solution with pH < 7 is:
A.
Neutral
B.
Acidic
C.
Basic
D.
Buffer
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ANSWER :
B. Acidic
16.
Which of the following is a buffer solution?

NEET - 2020

A.
0.1 M HCl and 0.1 M NaCl
B.
0.1 M CH₃COOH and 0.1 M CH₃COONa
C.
0.1 M NaOH and 0.1 M NaCl
D.
0.1 M NH₃ and 0.1 M NaOH
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ANSWER :
B. 0.1 M CH₃COOH and 0.1 M CH₃COONa
17.
Which of the following acids is the strongest?
A.
H₂SO₄
B.
HNO₃
C.
HClO₄
D.
CH₃COOH
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ANSWER :
C. HClO₄
18.
What is the solubility product expression for BaSO₄?
A.
Ksp = [Ba²⁺][SO₄²⁻]
B.
Ksp = [Ba²⁺]²[SO₄²⁻]
C.
Ksp = [Ba²⁺][SO₄²⁻]²
D.
Ksp = [Ba²⁺]⁻¹[SO₄²⁻]
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ANSWER :
A. Ksp = [Ba²⁺][SO₄²⁻]